Radioecho
无线电回波, 无线电反射信号
🗣️ 情景例句
I'm really not interested.
我真的不感兴趣。
It's already in production, so you can expect it in stores before the end of the month.
产品已投产了，所以月底前你可以获得。
What a pity!
真可惜！